| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "otcheskov_s_contrast_lin_stretch/omp/include/ops_omp.hpp" | ||
| 2 | |||
| 3 | #include <algorithm> | ||
| 4 | #include <cstddef> | ||
| 5 | #include <cstdint> | ||
| 6 | #include <vector> | ||
| 7 | |||
| 8 | #include "otcheskov_s_contrast_lin_stretch/common/include/common.hpp" | ||
| 9 | |||
| 10 | namespace otcheskov_s_contrast_lin_stretch { | ||
| 11 | |||
| 12 |
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36 | OtcheskovSContrastLinStretchOMP::OtcheskovSContrastLinStretchOMP(const InType &in) { |
| 13 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 14 |
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36 | GetInput() = in; |
| 15 | GetOutput().clear(); | ||
| 16 | 36 | } | |
| 17 | |||
| 18 | 36 | bool OtcheskovSContrastLinStretchOMP::ValidationImpl() { | |
| 19 | 36 | return !GetInput().empty(); | |
| 20 | } | ||
| 21 | |||
| 22 | 36 | bool OtcheskovSContrastLinStretchOMP::PreProcessingImpl() { | |
| 23 | 36 | GetOutput().resize(GetInput().size()); | |
| 24 | 36 | return GetOutput().size() == GetInput().size(); | |
| 25 | } | ||
| 26 | |||
| 27 |
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36 | bool OtcheskovSContrastLinStretchOMP::RunImpl() { |
| 28 |
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36 | if (GetInput().empty()) { |
| 29 | return false; | ||
| 30 | } | ||
| 31 | |||
| 32 | const InType &input = GetInput(); | ||
| 33 | OutType &output = GetOutput(); | ||
| 34 | const size_t size = input.size(); | ||
| 35 | |||
| 36 | uint8_t min_val = 255; | ||
| 37 | uint8_t max_val = 0; | ||
| 38 | |||
| 39 | 32 | #pragma omp parallel for default(none) shared(input, size) reduction(min : min_val) reduction(max : max_val) | |
| 40 | for (size_t i = 0; i < size; ++i) { | ||
| 41 | min_val = std::min(input[i], min_val); | ||
| 42 | max_val = std::max(input[i], max_val); | ||
| 43 | } | ||
| 44 | |||
| 45 | const size_t threshold_size = 1000000; | ||
| 46 |
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32 | if (min_val == max_val) { |
| 47 | 12 | #pragma omp parallel for if (input.size() > threshold_size) default(none) shared(input, output, size) | |
| 48 | for (size_t i = 0; i < size; ++i) { | ||
| 49 | output[i] = input[i]; | ||
| 50 | } | ||
| 51 | |||
| 52 | 12 | return true; | |
| 53 | } | ||
| 54 | |||
| 55 | 20 | const int min_i = static_cast<int>(min_val); | |
| 56 | 20 | const int range = static_cast<int>(max_val) - min_i; | |
| 57 | |||
| 58 | 20 | #pragma omp parallel for default(none) shared(input, output, min_i, range, size) | |
| 59 | for (size_t i = 0; i < size; ++i) { | ||
| 60 | int pixel = static_cast<int>(input[i]); | ||
| 61 | int value = (pixel - min_i) * 255 / range; | ||
| 62 | output[i] = static_cast<uint8_t>(std::clamp(value, 0, 255)); | ||
| 63 | } | ||
| 64 | |||
| 65 | 20 | return true; | |
| 66 | } | ||
| 67 | |||
| 68 | 36 | bool OtcheskovSContrastLinStretchOMP::PostProcessingImpl() { | |
| 69 | 36 | return true; | |
| 70 | } | ||
| 71 | |||
| 72 | } // namespace otcheskov_s_contrast_lin_stretch | ||
| 73 |